GFG two only odd numbers present in an array.

 package com.company;

public class CWR_TwoOddOccurring_Gfg {

    //    Two odd occurring ---> mindBlowing
    public static void findOdd(int[] arr, int n) {
        int res1 = 0, res2 = 0, xor = 0;
        for (int i = 0; i < n; i++) {
            xor = xor ^ arr[i];
        }
        int r = xor & ~(xor-1);

        for(int i = 0; i < n; i++){
            if((arr[i] & r) != 0){
                res1 = res1 ^ arr[i];
            }
            else
                res2 = res2 ^ arr[i];
        }
        System.out.println(res1 + "\n" + res2);
    }

    public static void main(String[] args) {
        int[] a = {3, 3, 4, 5, 6, 6};
        findOdd(a,6);
//        System.out.println();
    }
}